Add a root-gated "Halt a running server" operation to the break-glass
console. The operator picks a server from the live fleet and the console
flips that MinecraftServer CRD's spec.desiredState to Stopped via a
spec-only merge patch, disjoint from the operator's status writes, so it
cannot race or clobber reconciliation. It is the panel-independent
emergency stop for when the box still has root plus a kubeconfig.
System servers (login/lobby) are allowed but flagged: a system tag in the
picker and an explicit WARNING in the post-exit summary, since halting
login takes the shared auth front door down with no fallback. Audit is
best-effort so a halt still works with the audit sink down. Already-stopped
is a distinct no-op. The core (halt.go) is unit-tested against a real
controller-runtime fake client that applies the patch.
When a staff account already exists, the break-glass console now opens on a
thin top-level menu (menuModel) where account operations are peers rather than
tails of one wizard: provision/reset the Owner, or add an Operator. A fresh
machine with no Owner skips the menu and goes straight to Owner bootstrap, since
minting an Operator first would create a staff account the login gate rejects.
The Operator path reuses ownerModel via a bgOperation discriminator. It is
insert-only (performAddOperator -> InsertOperator), wraps a duplicate username as
api.ErrConflict and routes back to the provision form for a retry rather than
tearing down, and deliberately never flips the global local_auth toggle the way
the Owner thread does. The post-exit summary and audit trail distinguish the two
outcomes (isOperator); only the Owner provision claims local-password login was
enabled.
Tests cover the operator-model defaults, path selection (insert vs upsert and
the local-auth gate), conflict-retry versus generic teardown, isOperator
propagation, and the root menu routing for both fresh and admin-present
machines.